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Co(II, III) Hydroxides Supported on Zeolite Acting as an Efficient and Robust Catalyst for Catalytic Water Oxidation with Ru(bpy)33+ Научная публикация

Общее Язык: Английский, Жанр: Статья (Full article),
Статус опубликования: Опубликована, Оригинальность: Оригинальная
Конференция 4th International Symposium on the Catalysis for Clean Energy and Sustainable Chemistry
09-11 июл. 2018 , Bilbao
Журнал Topics in Catalysis
ISSN: 1022-5528 , E-ISSN: 1572-9028
Вых. Данные Год: 2019, Том: 62, Номер: 5-6, Страницы: 439-455 Страниц : 17 DOI: 10.1007/s11244-019-01158-1
Ключевые слова Water splitting One-electron oxidants Cobalt hydroxides Zeolite Oxygen evolution reaction
Авторы Yashnik Svetlana A. 1 , Chikunov Andrey S. 1 , Taran Oxana P. 1,2,3 , Salnikov Anton V. 1 , Parmon Valentin N. 1
Организации
1 Boreskov Institute of Catalysis SB RAS Novosibirsk Russia
2 Institute of Chemistry and Chemical Technology SB RAS, FRC Krasnoyarsk Science Center SB RAS Krasnoyarsk Russia
3 Siberian Federal University Krasnoyarsk Russia

Информация о финансировании (2)

1 Федеральное агентство научных организаций России 0303-2016-0014
2 Федеральное агентство научных организаций России 0356-2016-0503

Реферат: A novel highly efficient and stable for many cycles catalyst (1% Со-ZSM-5(17)) for water oxidation was developed using the method of polycondensation for stabilization of oxo/hydroxo complexes of cobalt (II, III) and nanosize Co3O4 in zeolite channels. In a weak-alkaline medium (pH 8.0, 9.2, 10.0) in the presence of a one-electron oxidant (Ru(bpy)33+), the catalyst provided the yield of oxygen as high as 56, 73 и 78% of the stoichiometric quantity, respectively. Catalysts based on ZSM-5 zeolite exhibited higher catalytic activity as compared to the catalysts based on the MOR, BEA, Y. Inspection of the electron states of cobalt in the Co-containing zeolite-based catalysts using TPR-H2 and UV–Vis DR techniques revealed that α-Co(OH)2-like polynuclear clusters and hydrocomplexes stabilized in the zeolite channels were most active to catalytic oxidation of water, while their transformation to Co3O4-like clusters/nanoparticles and Co2+ oxocomplexes, respectively, during thermal treatment led to some decrease in the catalyst efficiency. Coarsening of Co3O4-like clusters/nanoparticles caused the further decrease in the system efficiency. The minimal activity was observed with the catalysts containing predominantly isolated Co2 +Oh ions. The result obtained indicates a kind of at least polynuclear structure of the catalytically active center ConOx, where n > 2.
Библиографическая ссылка: Yashnik S.A. , Chikunov A.S. , Taran O.P. , Salnikov A.V. , Parmon V.N.
Co(II, III) Hydroxides Supported on Zeolite Acting as an Efficient and Robust Catalyst for Catalytic Water Oxidation with Ru(bpy)33+
Topics in Catalysis. 2019. V.62. N5-6. P.439-455. DOI: 10.1007/s11244-019-01158-1 WOS Scopus РИНЦ РИНЦ РИНЦ
Файлы: Полный текст от издателя
Даты:
Опубликована online: 16 мар. 2019 г.
Опубликована в печати: 1 июн. 2019 г.
Идентификаторы:
Web of science WOS:000473213000003
Scopus 2-s2.0-85063079724
РИНЦ 38671179 , 41788499 , 41874473
Chemical Abstracts 2019:672367
Альметрики: